Anthropic's February 2026 frontier model — expert-level reasoning, agentic coding, long-context work, and a 1M-token context window in beta, since succeeded by Opus 4.8 and Opus 5. A text-output model, not an image, audio, or video generator.
Last verified · 2026-08-22 · by Moe Ameen
Claude Opus 4.6 is a frontier large language model from Anthropic, released February 5, 2026 as the successor to Claude Opus 4.5. Anthropic positioned it as extending the frontier of expert-level reasoning, with the strongest gains in software engineering, agentic and long-horizon tasks, and knowledge work — financial analysis, document creation, and multi-step research. It's available through the Claude apps and API plus Amazon Bedrock, Google Cloud Vertex AI, and Microsoft Foundry on Azure.
On specs, Opus 4.6 carries a 200K-token context window, with a 1M-token window in beta on the Claude Platform, and up to 128K max output tokens. Thinking is adaptive, controlled by effort levels, and the release added agent teams in Claude Code and context compaction for longer-running tasks. The benchmark story is long context and reasoning: Anthropic reported 76% on the 8-needle 1M variant of the MRCR v2 long-context retrieval benchmark (versus 18.5% for Sonnet 4.5), and abstract reasoning rising from 37.6% to 68.8% on ARC-AGI-2, alongside a top score on Terminal-Bench 2.0 for agentic coding and a lead on Humanity's Last Exam. Pricing is $5 per million input tokens and $25 per million output tokens, with a higher rate for the extended context beyond 200K; confirm current figures on Anthropic's site.
Be precise about what kind of model this is. Opus 4.6 is multimodal on the input side — its vision reads charts, documents, diagrams, and screenshots — but its output is text. It doesn't generate images, synthesize voice or audio, or render video. For a creator, that's the boundary that matters: it's an excellent brain for scripts, outlines, captions, and articles, but it produces words, not the pixels, audio, or published posts a content operation needs. It has since been succeeded by Opus 4.8 and Opus 5, and it drew separate attention in August 2026 when TechCrunch reported the model could be jailbroken into producing explicit content that Anthropic's usage policy forbids — a safety-testing finding, not a feature. Treat any spec or price here as a snapshot and verify against Anthropic's docs before relying on a number.
Opus 4.6's headline strength is long context — retrieval on a million-token input leapt to 76% — so its natural creator use is turning one big source into a lot of drafts: feed it a full webinar transcript, a quarter of support tickets, or a research dump and it will pull the angles and write the copy. What it can't do, by design, is turn any of that into a face-locked avatar video, a brand-exact carousel, a quote graphic, or a scheduled post. That second half is the whole job of a content engine, and it's what [Kompozy](/) is. The useful part is that Kompozy already runs this class of model under the hood — its Text Posts, Blog Articles, and Email Newsletters are generated by Claude and OpenAI, governed by your [Persona Brief](/glossary/persona-brief) and banned-word filters, with bring-your-own-key on the Founding tier — so the same long-context intelligence drafts inside a pipeline that also builds the media and ships it.
Concretely: drop that single long source into Kompozy and it drafts the copy, then generates the formats Opus 4.6 can't — [Persona Shorts](/glossary/persona-shorts) and Persona HeyGen avatar video with a consistent face and voice, Clipped Shorts from long footage, [Carousels](/glossary/hyperframes) rendered pixel-exact, Photo Posts, Infographics, and Quote Graphics — all in one voice. Then [Autopilot](/glossary/autopilot) and a per-post review pipeline caption, reframe to 9:16, 1:1, and 16:9, schedule, and publish the batch across eight social platforms plus a blog and Mailchimp. Prefer to draft in the Claude app or the API first? Paste that output into Kompozy as your source. Opus 4.6 reads the long source and writes; Kompozy makes it into content and publishes it everywhere.
Claude Opus 4.6 is a frontier large language model from Anthropic, released February 5, 2026 as the successor to Opus 4.5. It targets expert-level reasoning, agentic coding, long-context work, and knowledge tasks like financial analysis and multi-step research. It has since been succeeded by Opus 4.8 and Opus 5.
No. Opus 4.6 is multimodal on input — its vision reads charts, documents, diagrams, and screenshots — but its output is text. It doesn't generate images, synthesize audio or voice, or render video. To turn its scripts and copy into avatar video, carousels, images, and published posts, pair it with a generation-and-publishing engine like Kompozy.
Opus 4.6 has a 200K-token context window, with a 1M-token window in beta on the Claude Platform, and up to 128K max output tokens. Anthropic reported strong long-context retrieval — 76% on the 8-needle 1M MRCR v2 benchmark, versus 18.5% for Sonnet 4.5 — which makes it strong for drafting from a very long source in one pass.
Anthropic priced Opus 4.6 at $5 per million input tokens and $25 per million output tokens on the API, with a higher rate for the extended context beyond 200K. It's also reachable through the Claude apps and via Amazon Bedrock, Google Cloud, and Microsoft Foundry. Confirm current pricing on Anthropic's site.
Anthropic's usage policy forbids sexually explicit content. In August 2026 TechCrunch reported that Opus 4.6 could be jailbroken into producing it, which Anthropic treats as a safety-testing failure rather than a feature, and newer models are more resistant. For business content, the practical safeguard is governance: an engine like Kompozy runs generation under a Persona Brief and banned-word filters so output stays on-brand.